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For the United States & Canada
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Fall Fund Drive


Genus Copelatus

Coleoptera - Copelatus glyphicus Coleoptera - Copelatus glyphicus Copelatus Predaceous Diving Beetle - Copelatus caelatipennis Copelatus? - Copelatus glyphicus Beetle - Copelatus 918C03 - Copelatus debilis dytiscid - Copelatus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Copelatinae
Genus Copelatus
Explanation of Names
Copelatus Erichson 1832
8 spp. in our area(1) of which 2 reach Canada(2), >460 spp. worldwide(3)
adult 4-6 mm, larva to 7-8 mm
Adult: each elytron with 5-10 longitudinal striae
pantropical genus feebly represented in temperate zones; in our area, more diverse in the south (6 spp. in FL)(3)
pioneer species, often found in temporary pools/puddles and in water bodies with accumulated organic debris (e.g. hollow trees)(3)
larvae and adults feed on copepods, ostracods, springtails, and aquatic fly larvae
In Ecuador, many species are found in fallen water-filled flower bracts of the palm tree Iriartea deltoidea. Large bracts may hold up to 5 litres of water, and contain more than 100 individual beetles.
Works Cited
1.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.
2.Bousquet Y., ed. (1991) Checklist of the beetles of Canada and Alaska
3.The Water Beetles of Florida
Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.
4.The Nearctic species of Copelatus Erichson (Coleoptera: Dytiscidae)
Frank N. Young. 1963. Quarterly Journal of the Florida Academy of Sciences, Vol. 26, pp. 56-77.